On 15/03/2012 09:03, Jirka Kosek wrote:
> Or does HTML5 provide other mechanism how to express such information
> in a more concise way?
I think the (or rather an) "html way" (as used by RDFa for example) is
to exercise the clause in html5 that allows other specifications to
extend it, and then just assert that (say) its-locNote is a valid
attribute of the extended specification.
Unlike namespace uris it doesn't have any mechanism for global avoidance
of clashes but in practice no one else will use the same its- prefix,
and in fact namespace uris don't ensure that either, as anyone can use
any uri as a namespace.
(The microdata mapping may be correct but I leave a microdata expert to
comment on that.)
David